Tag Archives: Spring

First Day of Spring is Fake News

20 Tuesday Mar 2018

Posted by in About Reno, All Rights Reserved, Astronomy, Global warming, Journalism, Lessons of Life, Nevada, Print Media, Reno, Science, Spring, Traditional Media, United States, Weather

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Today at 9:15 am Pacific Daylight Time (PDT) the Sun will be directly over the equator. For this reason, the news media will relentlessly remind us that Spring is here. They will tell us it is the return of warm weather! Yea! But, don’t be fooled by their fake news.

Springtime in the Northern Hemisphere. Bah!

You Call This Spring? 

The Vernal equinox may be the date that the Sun comes back over to our side of the equator, but let’s be real, warm weather doesn’t rush back the northern hemisphere. At least not to those over 35° north latitude. Some of us will be lucky to see our shadow on the first day of Spring. Forget about the stupid groundhog that never, ever is correct.

The northern hemisphere will continue to be smothered in cold air masses and bring snow down across much of the lower 48 states. (Don’t get smug Hawai’i. You can have snowstorms after the Vernal equinox, too. You just have to climb a really tall volcano to get to it.) The media calls them ‘Spring snowstorms’ as if that is supposed to make us feel better about them. News flash: It doesn’t.

And don’t get me started on those people who like to slip down a snow-covered slope while trying to stand on bent slats of fiberglass. They are all smiles when a new storm dumps more solid water in the mountains. After the third week in March, skiing and snowboarding should be done on ice and melting snow, as God intended. None of this ‘fresh powder’ crap.

Spring Reality Check

For the next three months, the axis tilt of the Earth will increasingly favor the Sun in the northern hemisphere. For those of us that are done with cold weather, we have to remember that warm and cold are like new lovers can’t get enough of each other.

As the lower latitudes of the northern hemisphere heat up, the cold air in the higher latitudes rushes down to embrace the warmth. Tornados in northern Florida are an indication that the Sun is heating up the northern hemisphere and the winter cold is rushing down to meet it. As we move from March to April to May to June, tornados will show up farther and farther north.

The Script

News media will still try to convince us that the weather significantly changes on 20 March. I’ve stolen an advance copy of the script that is to be used by local television weather people across the northern United States:

Weatherperson:

(Try to sound homey) Well, it looks like Spring is here, but we still have some Spring snowstorms hanging around for the next few days, weeks, or possibly months. These storms are Spring storms so the temperature will be one half a degree warmer than during the Winter. We should see only a trace of snow, up to two meters if your house is located within the area of snowfall. It will quickly melt off in May, so get out there and enjoy the Spring weather!

Five ‘Facts’ About the Equinox?

24 Saturday Feb 2018

Posted by in Astronomy, Random, Science, solar, Space, United States

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At 9:15 am PDT on the 20th of March, we will reach the Spring Equinox, or more correctly, the Vernal Equinox. People in the northern hemisphere refer to this as the beginning of Spring. It is also referred to as:

  1. the date when day and night are equal
  2. the date when the Sun shines on both the North Pole and the South Pole
  3. the date when the Sun rises exactly East and sets exactly West at every location on the Earth
  4. the date you can balance an egg on its end
  5. the date you won’t cast a shadow.

Two of these ‘facts’ are false, one is “well, sort of,” fact, one is “mostly true,” and one is true.

Timelapse From Space:  Seasonal Progression of Sunlight on Earth

The Date of Equal Day and Night?

Nope. While the length of day and night are almost equal on the day of the Vernal Equinox, it’s not actually true unless you’re closer to the North or South Pole. At the poles and the farther away from the poles, the less this is true.

For example, in Longyearbyen, Svalbard, Norway, in the Arctic Circle, in 2018 the date that comes closest to being equal in day and night hours is the 19th of March (day = 11:58:51 hours long.) In Reno, Nevada, USA, the date day and night are almost equal  is the 16th of March (day = 11:59:28 hours long.) In Sydney, Austrailia that date is the 24th of March (day = 12:00:38 hours long.) In Bogata, Columbia it was the 21st of February (day = 11:59:59 hours long.) 

The Date the Sun Shines on Both Poles?

Yes, and on the North Pole, it spirals up from the horizon, around the viewer until the Summer Solstice when it begins to spiral downward, setting after the Autumnal Equinox in the Fall. The same is true for the South Pole, only the Sun rises at the Autumnal Equinox and sets after the Vernal Equinox.

South Pole sunrise

Sunrise on the South Pole

The Date the Sun Rises Dead East and Sets Dead West?

Mostly true. Its explanation makes my head hurt, but I’ve been able to use pencils on a globe on its axis with a single light source to prove it to myself. You can read multiple descriptions on the Internet but have pain reliever at the ready.

However, there’s a catch. The viewer has to have an unobstructed view of the horizon and be near or at sea level. The Sun’s trajectory is at an angle compared to the horizon and if the view of the true horizon is blocked the Sun will appear to rise or set at a location that is off from true East or West.  

The Date You Can Balance an Egg On Its End?

Long proven to be false…and stupid at the same time.

The Date of No Shadows?

Sort of true, but only if you’re on the equator at exactly high noon. Not many people want to do that…it’s hot at the equator. Who wants to stand out in the Sun at noon just to NOT see your shadow? Besides, the people who might want to do that are still trying to balance an egg on its end.